Finding the Fourth Proportional to 9,245,470.19, 12,759,125.30 and 5,115,434.44
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Solution
The fourth proportional to 9,245,470.19, 12,759,125.30 and 5,115,434.44 is: 7,059,507.81
Step by Step Solution
- Step 1: Write the proportion equation
9,245,470.19 : 12,759,125.30 = 5,115,434.44 : x - Step 2: Convert to fraction form
9,245,470.19/12,759,125.30 = 5,115,434.44/x - Step 3: Cross multiply
9,245,470.19x = 12,759,125.30 × 5,115,434.44 - Step 4: Simplify right side
9,245,470.19x = 65,268,468,983,895.34 - Step 5: Solve for x
x = 65,268,468,983,895.34/9,245,470.19 - Step 6: Final answer
x = 7,059,507.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.